The book arrived this morning, thank you. Had a quick skim and all sorts of things jumped out - music, the slower the longer the customer stays, I've seen this happen in this shop. We decided to use mostly blues jazz (Blossom Deary, Ella Fitzgerald, Dianna Kraul, Nick Charles, etc) in the background and we've had so many comments about how peaceful this bookshop is - now I understand how useful that feeling is in keeping customers here.